C11111211113313112113313331333133313331333132313331333133313232233231111   >>    C1111121111331311211331333133313331333133313231333133313331323223323111   <<    C11111211113313112113313331333133313331333132313331333133313232233231113   >>      C11111211113313112113313331333133313331333132313331333133313232233231112   >>